Question

factorise:- c²+ 2ab - (a²+b²)​

Answer 1

$c^2+2ab-\left(a^2+b^2\right)$

$=c^2+2ab-a^2-b^2$

Answer 2

Answer:

c²-a²-b²

Step-by-step explanation:

c²+2ab-(a²+b²)​

= c²+2ab-(a²+b²+2ab)

= c²+2ab-a²-b²-2ab

= c²-a²-b²

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